[patch i386 libgcc]: Enable support for __float128 (TFmode) IEEE quad type for x86/x64 mingw targets

[Kai Tietz]

2009/6/21 Kai Tietz <ktietz70@googlemail.com>:
> Hello,
>
> this patch enable the 128-bit floating pointer feature for the x86 and
> x64 mingw targets. I added to the mingw32.h file the defines to enable
> the TFmode for it. I am a bit curious about that for cygwin those
> defines aren't necessary (at least the cygwin's patch was applied in
> front and as told should work). Dave could you verify this?
>
> I tested this patch for i686-pc-mingw32 and for x86_64-pc-mingw32
> without having regressions.
>
> ChangeLog for gcc
>
> 2009-06-21  Kai Tietz  <kai.tietz@onevision.com>
>
>        * config.gcc: Add for x86 and x64 mingw targets t-fprules-soft
>        and t-softfp support.
>        * config/i386/mingw32.h (LIBGCC2_HAS_TF_MODE): Enable TFmode.
>        (LIBGCC2_TF_CEXT): Define.
>        (TF_SIZE): Define.
>
> ChangeLog for libgcc
>
>        * config.host: Add soft emulation for x86 and x64 mingw targets.
>        * config/i386/64/_divtc3.c: Disable for mingw targets usage of
>        .symver assembly symbol.
>        * config/i386/64/_multc3.c: Likewise.
>        * config/i386/64/_powitf2.c: Likewise.
>        * config/i386/64/eqtf2.c: Likewise.
>        * config/i386/64/getf2.c: Likewise.
>        * config/i386/64/letf2.c: Likewise.
>        * config/i386/64/letf2.c: Likewise.
>        * config/i386/64/sfp-machine.h (_FP_W_TYPE): Define it
>        for x64 mingw target as unsigned long long.
>        (_FP_WS_TYPE): Define it for x64 mingw target as signed long
>        long.
>        (_FP_I_TYPE): Define it for x64 mingw target as long long.
>
>
> Is this patch ok for apply on trunk?
>
> Cheers,
> Kai
>
> --
> |  (\_/) This is Bunny. Copy and paste
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Committed at revision 148799. Approved by Ian via IRC and pre-approved by Uros.

Thanks,
Kai

-- 
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